Cheats, glitches, and other stuff

Enter multiplayer and go to moonraker elite. Type the following code. When you complete it, you'll have 64 characters!
D STANDS FOR THE CROSS CONTROLER PAD.
HOLD L+R PRESS C LEFT
HOLD L PRESS C UP
HOLD L+R PRESS D LEFT
HOLD L PRESS D RIGHT
HOLD R PRESS D DOWN
HOLD L+R PRESS C LEFT
HOLD L PRESS C UP
HOLD L+R PRESS D RIGHT
HOLD L+R PRESS C DOWN
HOLD L PRESS D DOWN

Heres the double weapon trick:
1.Hold button A.
2.Before you cycle foward, press Z twice.
3.Release A button.
4.Press A once.
5.Press Z to fire two or three times while the weapons are changing.